Build One South Africa

Build One South Africa (BOSA), officially registered as Build One South Africa With Mmusi Maimane, is a South African political party. It is led by Mmusi Maimane, the leader of the One SA Movement and the former leader of the Democratic Alliance. BOSA secured two parliamentary seats in the National Assembly at the 2024 National and Provincial Elections.

History
The party was launched on 24 September 2022 in Naledi, Soweto. The deputy leader is Nobuntu Hlazo-Webster, founder and convener of the South African Women’s Commission. The chairperson of the party is the current Nelson Mandela Bay deputy mayor Mkhuseli Jack.

The party contested its first by-election in October 2023, winning 1% of the vote in the ward one election in Sol Plaatje Local Municipality.

The party contested the 2024 general election as an "umbrella organisation" for independent candidates. Maimane stood as the party's presidential candidate in the elections. The party received around 0.4% of the national vote in the election.

National Assembly elections
! Election ! Party leader ! Total votes ! Share of vote ! Seats ! +/– ! Status ! 2024
 * Mmusi Maimane
 * 65,912
 * 0.41%
 * New
 * Opposition
 * }
 * }

National Council of Provinces elections
! Election ! Total # of seats won ! +/– ! Government ! 2024
 * TBA
 * TBA
 * TBA
 * }

Provincial elections
! rowspan=2 | Election ! colspan=2 | Eastern Cape ! colspan=2 | Free State ! colspan=2 | Gauteng ! colspan=2 | Kwazulu-Natal ! colspan=2 | Limpopo ! colspan=2 | Mpumalanga ! colspan=2 | North-West ! colspan=2 | Northern Cape ! colspan=2 | Western Cape ! % !! Seats ! % !! Seats ! % !! Seats ! % !! Seats ! % !! Seats ! % !! Seats ! % !! Seats ! % !! Seats ! % !! Seats ! 2024
 * 0.18 || 0/73
 * 0.35 || 0/30
 * 0.76 || 1/80
 * 0.13 || 0/80
 * 0.26 || 0/64
 * 0.19 || 0/51
 * 0.44 || 0/38
 * 0.25 || 0/30
 * 0.41 || 0/42
 * }